SDR-4X II is the latest prototype model of a small biped entertainment robot. It is the improved model of SDR-4X. In this paper we report on the sensing system of this robot, which is important and essential for a small biped entertainment robot which will be used in the home environment. One technology is the design of the motion sensing system, i.e. the inclination sensor system and the force...

Real-time balance control of an eight-link biped robot using a zero moment point (ZMP) dynamic model is difficult to achieve due to the processing time of the corresponding equations. To overcome this limitation an intelligent computing technique based on Support Vector Regression (SVR) is developed and presented in this paper. To implement a PD controller the SVR uses the ZMP error relative to...

Recently, a lot of research has been conducted in the area of biped walking robots that could be compared to human beings. The aim of this article is to control a new planar biped robot by means of an adaptive procedure. The newly designed robot is able to move on its heel like a human. After derivation of dynamic equations of motion for two states of the robot, namely, “supporting leg and trun...

Recently, a lot of researches which aim at realization of dynamic biped walking are being performed. There is Honda's ASIMO as a representative of researches of humanoid robots. ASIMO has joints of many degrees of freedom that are near to a human being, high environment adaptability and robustness, and can do various performances. However, it needs many sensors, complicated control, and walks w...

Seminal works in biped walking such as [1] had assumed favorable initial conditions on a limit cycle to start with. A more practical approach would be to start the biped from a static resting position. This paper proposes a simplified and straightforward approach for taking a biped robot from an initial resting position to a stable walking limit cycle. The biped model selected for the study is ...

Biped robots form a subclass of legged or walking robots. The study of mechanical legged motion has been motivated by its potential use as a means of locomotion in rough terrain, as well as its potential benefits to prothesis development and testing. This paper concentrates on issues related to the automatic control of biped robots. More precisely, its primary goal is to contribute a means to p...

To date, various methods using the concept of neural circuit or so-called central pattern generators (CPGs) have been proposed to create agile locomotion for legged robots. In contrast to these approaches, in this article we propose a polymorphic neural circuit that allows the dynamic change of its properties according to the current situation in real time to be employed instead. To this end, t...

This work studied biped walking with single (one-leg) support and balance control using reinforcement learning. The proposed Q-learning algorithm makes a robot learn to walk without any previous knowledge of dynamics model. This balance control with single support shifts the Zero Moment Point (ZMP) of the robot to a stable region over walking sequences by means of learned gestures. Hence, the p...